NA = North America 
SA = South America
EU = Europian union
EA = Eurasia
EAO = Eurasia and Oceania
O = Oceania

Types:
GL = Global(No classification/WIDEAREA/ABROAD)
MO = Master origin/True source
N = Normal

Server codification
[OPTIONAL Type]-[Region]-[OPTIONAL Sub-region]-[Cluster number]-[Server Name(User number if it doesn't have a name)]-[OPTIONAL Role]

To change hostname use:

sudo hostnamectl set-hostname HOSTNAME

EXAMPLE:

sudo hostnamectl set-hostname MO-NA-MI-0-Balderdash-DEV

ALL HOSTNAMES ARE ALL CASE EXCLUDING THE SERVER NAME WHICH ONLY HAS IT'S FIRST LETTER UPPERCASE.